Sia memberships

One Sia. Room to do more.

The same assistant for writing, planning, learning and research. Your interests personalize Sia; they do not lock you into a category.

Sia Free needs no card. Basic is an optional monthly subscription; Pro checkout is coming soon. No automatic overages; voice is not included until separately qualified.

Sia Free

A real place to start with Sia

100 ordinary replies a month, with a 15-reply rolling five-hour safeguard
5 researched replies, 1 public website evaluation and 2 image questions a month
Saved chats, personalization, themes, assistant naming and Quick Actions
No card and no automatic overages

$0/month

Start Free

Sia Basic

More room for everyday work

Sia conversation and saved chats
Public web research, website evaluations and image questions
A larger monthly service allowance than Free
Personalization, themes, assistant naming and Quick Actions

$19/month

Choose Sia Basic

Sia Pro

More capacity for deeper individual work

Everything in Basic
A higher monthly service allowance than Basic
More room for detailed research and planning

$39/month · Coming Soon / Planned

Sia Business

Planned business workspace

Planned team operations and company knowledge
Planned business controls and higher capacity

$99/month · Coming Soon / Planned

Sia Executive

Planned strategic workspace

Planned managed seats and administration
Planned higher-capacity strategic work

$249/month · Coming Soon / Planned

Already using Sia?

Sign in to access your saved chats and profile. Visit your account to see the sign-in methods currently available. A ChatGPT subscription is separate from any future Sia subscription.

Go to your account